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TIE-IN SALE: A type of sale in which consumers can buy one good only if they purchase another good as well. For example, if your grocery store sells you a bag of tea with the condition that you buy a pound of sugar, that would be a tie-in sale. Because they allow a monopoly to increase its profit over what it could make by selling the two goods separately at constant prices, tie-in sales can be used to price discriminate. However, it is important to realize that there are other reasons for tie-in sales other than price discrimination, such as to increase efficiency. For example, when we buy a car, it comes as a package of several goods (tires, engine, etc), which would be very difficult (and inefficient) for consumers to assemble if they were bought separately.

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SELF CORRECTION, AGGREGATE MARKET

The automatic process in which the aggregate market adjusts from short-run equilibrium to long-run equilibrium. Self-correction results through shifts of the short-run aggregate supply curve caused by changes in wages (and other resource prices). The self-correction mechanism acts to close both recessionary gaps and inflationary gaps. The short-run aggregate supply curve increases (shifts rightward) due to lower wages to close a recessionary gap and decreases (shifts leftward) due to higher wages to close an inflationary gap.

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Today, you are likely to spend a great deal of time lost in your local discount super center seeking to buy either a how-to book on building remote controlled airplanes or an extra large beach blanket. Be on the lookout for broken fingernail clippers.
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Lombard Street is London's equivalent of New York's Wall Street.
"The greatest use of life is to spend it for something that will outlast it."

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